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spanner

spanner

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Gas Engineer
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Hi guys weekends here again..
Got a junior 28i about 12 year old boiler
The pressure is constantly topping up!
With or without the filling loop key .
The client has gone away until next week and not going to do any further work until they return and have left no number to contact whilst away and left me the door keys.. haaa.. this sounds fishy.
Getting back to the issue
The prv is discharging and when isolated obviously no hot water ( few drips and drabs from the hot outlet) but still pressure will gradually build up on the gauge?
Few things is ISO letting by??
Either the internal fillig loop letting by??
OR a hole in the PHE( plate heat exchanger) calorifier constantly building up and discharges through PRV??
Also a banging kettling noise when working on central heating ( this I think would be the constant induction of fresh mains water scaled up in the exchanger causing a blockage, the constant bang bang".
I'm thinking of just applying a " DO NOT USE lable filling out A C12
Would i be correct to issue this and assist the boiler is unsafe to use?
Switch off?
If anyone has this advise would be grateful thanks.
1st thing - Tightness test was succesful.
 
Hi spanner, to me it sounds very fishy.
I would not have kept they keys because very often they will blame you once there are back that the scenarios you describe didn't happen before. Then you are trapped, just because they want you to fix it for free.
It sounds to me the internal filling loop letting by.

However, I'd be careful with taking someone's keys it could end badly.

I cannot give you a answer about labelling as I am not gas safe yet.

Perhaps @ShaunCorbs @king of pipes @rpm they could help you out.
 
Matchless.plumb said:
Hi spanner, to me it sounds very fishy.
I would not have kept they keys because very often they will blame you once there are back that the scenarios you describe didn't happen before. Then you are trapped, just because they want you to fix it for free.
It sounds to me the internal filling loop letting by.

However, I'd be careful with taking someone's keys it could end badly.

I cannot give you a answer about labelling as I am not gas safe yet.

Perhaps @ShaunCorbs @king of pipes @rpm they could help you out.
Click to expand...
Is the internal loop the white key type? If so is th key removed as if it is it cannot pass
 
Turn the water mains off and open a hot tap does the boiler system pressure drop ?
 
Your both on the ball today just about to move it and two notifications pop up :D
 
Harvest Fields said:
Is the internal loop the white key type? If so is th key removed as if it is it cannot pass
Click to expand...
Yep the white built in internal key
Weren't to hand
Has to get one from spares
I'm on hold until they get back.
Been there before with hijacked appliance owners.
 
Cheers mate
No drips from loop
Had to attain another key as there weren't one there.
Have put the danger do use label on it.
Filled in a CP12
Wait till they get back.
Surely the cost of the repair is going to be outstanding.
 
spanner said:
Cheers mate
No drips from loop
Had to attain another key as there weren't one there.
Have put the danger do use label on it.
Filled in a CP12
Wait till they get back.
Surely the cost of the repair is going to be outstanding.
Click to expand...

why a danger label?
 
Loud banging within the heat exchanger so far...
And that stands as.
Still need them present to ask about the hot water outlet and colour
 
Was asking about this issue earlier..!!
 
spanner said:
Loud banging within the heat exchanger so far...
And that stands as.
Still need them present to ask about the hot water outlet and colour
Click to expand...

and how does that mean its unsafe ?
 
Waters off at the moment.
When it's back on and they're present I can carry out the rest of the investigation.
Personally the the noise coming from it is not right and I'd class it as a do not use.
Until the fault is rectified for their safety and others..
 
Yep flow and returns are open
Cold water isolated at the moment
 
is the heat exchanger ribbed?
 
Ain't removed chamber cover yet
 
Talk about removing.
I'm not even going there.
As far as I've seen it's enough
These people should be back tomorrow.
And as far as things go
I'm not going to assist it in any way.
They can get another engineer to do what's required.
Whether a replacement or repair.
 
Not complete
Its tightness tested only and as far as the issue with the discharging of the prv and banging..
Or have I filled out the wrong form ..??
 
are you training or fully gas safe?
 
Its the only form u have other than the hot water G3 sheet
 
Fully gas safe.
 
For your information the 28i doesn't have a Plate heat exchanger, just had a similar problem with one of these found a blockage in the flexi pipe between the pump and expansion tank, & its a pig to get at
 
Cheers mate.
Will scroll through
So which form would you USE
For this task??
 
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